MOV's should fail shorted or destroyed. A visual or simple continuity
check will locate those. Occasionally they will fail open. There is a
HV tester for MOV's but if you have access to a megger or hipot tester
that will work as well.
Otherwise just replace them all. They are cheap and very effective...
[email protected] wrote:
> WX0B relays are pretty tough, I have had many direct lightning strikes and
> no relay damage - even with no MOV protection near the relay.
>
> I have had MOV's short after a direct hit, so sometimes they fail closed. I
> always replaced any that were obviously burnt even if open.
>
> John KK9A
>
>
--
Kevin C. Kidd, CSRE/AMD
WD4RAT
mailto:[email protected]
KK BROADCAST ENGINEERING
http://www.kkbc.com
AM GROUND SYSTEMS CO.
http://www.amgroundsystems.com
51 Ridge Ln
Lawrenceburg, TN 38464
Local: 931-766-2999
Nation Wide: 877-766-2999
FAX: 931-766-3974
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